GTAW was originally developed for metals that were difficult to weld by the SMAW processes.

• A. Not sure
• B. TRUE
• C. FALSE
• D. Depends

Answer: (B)

GTAW was developed to weld metals that SMAW struggled to join, because it offers precise control of heat input and clean, high-quality welds without slag. The arc is stabilized and shielded by an inert gas, and a non-consumable tungsten electrode allows welding of thin sections and reactive or difficult metals like aluminum and magnesium alloys with minimal distortion. This history explains why the statement is true: TIG welding emerged specifically to handle metals that were not easy to weld with the traditional SMAW process. The other options don’t fit because they introduce uncertainty or deny a well-established historical fact.